Anchor-bar for ice cakes.



PATENTE) J'UNBVz, 1903;-

T. H. BUTLER.

ANCHOR-BAR FOR ICB GAKBS.

APPLIOATION IILBD JUNE 2a, 1902.

N0 MODEL.

K 1F15. E-

FID- l..

A, [NVE/g/TOR l Alloruey WTNESSES j? WZ No. F730,001.

Patented .I une 2, 1903.

THOMAS H. BUTLER, OF BALTIMORE, MARYLAND.

ANCHOR-BAR FOR ICE CAKES.

.SPECIFlCATION forming part 0f Letters Patent No. 730,001, dated June 2, 1903.

Application filed June 23, 1902. Serial No. 112.1773. (No model.)

To @ZZ whom it may concern:

enable others skilled in the art to which it:

appertains to make and use the same.

This invention relates to anchor-bars which are frozen iut-o cakes of ice formed in ice-ma# chines for the attachment of lifting-tackle.

This invention consists in the novel cony struction and combination of the parts here-- inafter fully described and claimed which permit the anchor-bars to be removed from' the -ice before it is sawed up in the sawing-v machine.

In the drawings, Figure 1 is a cross-section through a portion of a freezing-tank provided with anchor-bars according to this invention.l Fig. 2V is a longitudinal section through the freezing-tank.

A is a freezing-tank of any approved construction, and B is afreezing-plate securedl in the tank A and provided with coils b,

through which refrigerated brine is circulated. l

C represents thawing-off pipes for steam, arranged under the bottom c of thetank A. The ice cakes D form on both sides of the plate B, and after they are formed steam or .other hot uid is admitted to the pipes b and C to detach the cakes of ice. In order to lift the detached cakes of ice out of the freezingtank, anchor-bars E are frozen into them.

Each `anchor-bar is hollovtr or tubular and is closed at its bottom end and provided with a plate e, which rests on the bottom c of the freezing-tank. The platee engages positively with the ice, and as the bottom end of the tube is closed the Water does not get into'the anchor-bar and become frozen in it so as to close it. The upper end portions of the anchorbars are screw-threadedat f, and g isa distance-piece which ooupleseach pair of anchorbars to the freezing-plate B. Each distancepiece has a socket h at its middle part, which is dropped over the upper part of the freezing-plate, and it hastholes in its end portions which engage with the anchor-bars and hold them in their preferred positions. Nuts t' anchor-bars. 'out of the freezing-tank, it is llaid in an inclined or a fiat position on a suitable table, `preferably, the table of {the circular saw which i may be screwed on the upper end portions of the anchor-bars, if desired, while the cakes of ice are being formed. When the cakes of ice have been detached, the distance-pieces g are removed and a lifter 7o is screwed on the top-portion of each anchor-bar. Each lifter hasV an eye or hook forengagement with any crane or other lifting device. Y,The litters le may' be used i'n place of thenuts "i, if desired, to'hold the distance-piecesconpled tothe When a cake of iceis lifted cuts the cake into blocks of suitable size. l

The lifter is removed and a small steam-pipe is thrust into the open end of the tubular anchor-bar. able yboiler through the steam-pipe until the ice close to the anchorbaris' thawed and the anchor-bar is loose. The anchor-bar is then pulled out from the original bottom end of `the cake of ice, and the cake is ready-for the saw afterall the anchor-bars have been removed.y

l. The combinatiom, Witha freezing-tank, of a tubular anchor-bar provided with astopper whichy closes its lower end and which rests on thebottom of the tank, and a distancepiece which couples the upper end portion of the said bar to the said tank, substantially as set forth. Y

2. The combination, with a freezing-tank, of a tubular anchor-bar closed at one end, and a distance-piece which couples the other end portion of the saidbar to the said tank, substantially as set forth.

3. The combination, with a freezing-tank, and a freezing-plate therein; of two tubular anchor-bars closed at their lower ends and arranged one on each side of the said freezing-plate, and a distance-piece which engages with the upper end portions of the said anchor-bars and has a socket at its middle part which engages with the said Vfreezingplate, substantially as set forth.

In testimony whereof I affix roy-signature in presence of two witnesses. I

THOMAS H. BUTLER.`

Witnesses:

W. N. FINLEY, CEAS. C. GRAF.

IOC

70 Steam is'admitted from a suit- 

